Side Chapter: Elizabeth and Diane Mistaken Human Dildo - Seven Deadly Sins

(Unaware, Boobs, Vore, Pussy, Ass)
Elizabeth and Diane Mistaken Human Dildo - Seven Deadly Sins
Pre-context: Season 1 around episode 13 of the show. The group returns to the tavern to rest and recover after a massive battle with Helbram. 

Each of the members entered the tavern except for Diane who was left outside. The giant woman of 30 feet was too massive to join the others. She was known as the Serpent's Sin of Envy. The woman had big purple eyes and medium length brown hair which was usually tied up into large twin tails. She had a particularly well-developed and curvaceous body. Like most of the other Seven Deadly Sins, her facial appearance was relatively childlike despite being around 750 years old. 
“I wish I could be normal size again. Meliodas never gave me a clear answer on if he wanted to make babies together.” Diane talked to herself while peeking into the tavern through the main floor window. 
As the giantess watched, Meliodas and Ban began arm wrestling. The two men were both in critical condition after a day of fighting, but that didn’t stop them from horsing around. Diane didn’t pay too much attention as she had her eye on Elizabeth who was the princess of Liones and her competitor for her man. 
“Meliodas, you need to rest. You can’t keep going without giving your body some time to recover.” Elizabeth begged. 
“Sure I can.” Meliodas said turning to face the princess while still maintaining his arm wrestle position. 
He was putting in very little effort while Ban was trying his hardest to win. 
“You need to rest your head, please Meliodas!” Elizabeth cried out being more serious. 
“Okay.” The childish-looking man replied without emotion.  
Right as he finished the word, Ban’s arm got snapped in half as Meliodas applied a minuscule amount of effort. He then jumped up from the table and pushed himself face-first into Elizabeth’s boobs. This was a typical thing that happened between them; although, it still shocked the girl every time. She shrieked as his face indented her cleavage. Ban laughed as he fixed his arm.
“Uh, sir Meliodas!” She cried out unexpectedly.
“What? You said I needed to rest my head and this is the comfiest place I know.” Meliodas said muffled by the squishy breast against his mouth. 
“This isn’t what I meant.” She replied stunned. 
Elizabeth then noticed Diane’s eye angrily retreat from the window. The giantess sat outside and pouted as she wanted to be the one getting groped. 
“Meliodas had his chance today when I was his height but he still didn’t care to stick his face in my boobs. And just look at the size of them now that I’m back to being a giant. He could fit his whole body in my boobs, and then sleep himself to recovery.” Diane said enviously. 
Thinking about Meliodas sleeping in her boobs started to turn her on. Seeing how the rest of the gang was busy, she decided to go off into the forest for some alone time. She rummaged through her belongings and found the human-sized doll that she often used as a dildo while masturbating. With her toy in hand, she quietly left to find a comfortable spot to be alone. However, Elizabeth ran outside just in time to see where she was going.
“Wait, Diane! I just want to apologize and see if you’re okay.” The princess said following her massive friend into the forest. 
Diane eventually made it to a clearing that was surrounded by thick bush. She stripped naked and then made herself comfortable on the grass. She had set the doll down beforehand and accidentally covered it with her clothes. Elizabeth walked through the bush just as Diane’s hand was searching for the life-sized figure. The giantess’s fingers met Elizabeth’s body and couldn’t distinguish the girl from her doll. Elizabeth was caught off guard and unable to scream as her mouth was covered by a finger. Diane had a routine to pleasuring herself and she got right into it. 
“Oh, Meliodas! You’re so naughty, jumping into the nude breasts while I’m enjoying my alone time.” Diane teased herself and squished Elizabeth’s body in between her boobs. 
The soft flesh parted, giving way for its visitor. Once perched against her chest, she then firmly pressed her tits together, soaking in the belief that she was making her toy Meliodas happy. Diane held the pressure until her pussy was nice and wet. Elizabeth tried to cry out for help but Diane’s boobs were just too massive that the flesh nearly suffocated her. Earlier that day, she was in a similar position; although, Diane wasn’t unaware of her presence and also not trying to pleasure herself. 
“Mhmm your body feels so good against mine, let me help you with your clothes.” She said tossing Elizabeth up into her mouth. 
After catching the girl, she continued her regular masturbating routine with undressing the doll. There were some small differences between the doll and Elizabeth but nothing that took Diane out from her hormone sedated mood. Elizabeth wanted to fight back but the unfathomed strength from Diane scared her into submission. The giantess then used her tongue to wrap around the princess’ body and remove her top. The massive red muscle was by itself, a hundred times stronger than she was. The warm saliva encapsulated her skin as she began sliding down Diane’s throat to her doom. Diane purposely deep throated the doll so she could then remove its bottoms. Elizabeth’s breasts slid along her throat which felt abnormal to Diane, but not enough to shake her from her climax crave. Once naked, the giantess regurgitated the small body onto her hand. 
“Meliodas, now comes our favourite part.” Diane said lowering her hand to her starving pussy. 
Elizabeth gasped in horror as Diane spread her legs and revealed her gaping vagina. As her puffy lips parted, there were sticky strands from her juicy womanhood that bridged the gap. The giantess couldn’t wait any longer as she plummeted Elizabeth like a dildo deep into her wet hole. The body slid with ease all the way inside. 
“Oh, Captain! It’s almost like I can feel you moving. You feel amazing in there!” Diane cried out in pleasure. 
Elizabeth finally fought back with all her strength. Her friend had taken it too far and now she was drowning in the girl’s cum. Unfortunately, the movements didn’t wake Diane up, they only intensified the pleasure. The giantess held onto her toy’s feet as she pumped it in and out. Diane burst out in moans as her breathing grew heavier and faster. The massive woman’s body began to shake the ground beneath her as she peaked into climax. Elizabeth swallowed loads cum as her face bashed into the back of Diane’s pussy. 
“Uhhhh!” Diane orgasmed so loud, the nearby town could hear.
“Diane is that you over there?” Meliodas asked while coming closer. 
In a panic, Diane decided to hide her doll. It couldn’t all fit in her pussy, so she used her other hole. The soaked body was pulled from her vagina as Elizabeth gasped for air. Before the girl could speak, Diane then shoved the slippery body into her asshole. She winced as the body squeezed through her tight anus. Once hidden, she stood up and attempted to quickly put all her clothes back on.
“Woah Diane, why are you naked out here?” Meliodas said stumbling into his friend. 
“None of your business! Now, why are you here creeping on me?” She replied covering up. 
“I was checking in on you and Elizabeth. Have you seen her? Also, what is this weird looking doll over there?” He asked pointing to a human-sized figure on the ground. 
Diane froze as she then focused in on the weird feeling coming from her bowels. It was Elizabeth. Her entire face went beat red as she realized that she had just used her friend like a dildo. Her insides twisted and her stomach growled. Not long after, she released a massive fart. Elizabeth’s soaked body popped out from her captive’s ass. All three of them remained completely shocked at what just happened. 
“Well, you don’t see that every day.” Meliodas said breaking the silence. 

Thanks for reading and I hope you enjoyed this side chapter!