You make Lydia cum, hard

Lydia is incredible. She bounce on your cock like she has been waiting to fuck you for months, which, come to think of it, she maybe has. Her pussy is tight and it takes some time for you to fully fit inside her, but she makes it very clear that she can take it.
"Ah, fuck" she moans as you push even deeper. "Keep going. I´m not used to a cock that big. I cant even really feel it if John enters me, but I have a hard time taking you...your so big oh god..."
Her head turns to her right, looking at John, who let go of his dick, presumably to sotp himself from cumming.
"Hes so big babe..."Lydia says..."I dont know if I´ll ever feel your tiny dick again...hes stretching me out so much."
Then, with another thrust of yours, her eyes roll back and shes focussed on you again.

"I waited so long dor this Ethan", she says, out of breath..."Waited for you big dick to fill me...tofuck me and stretch me out...to claim my pussy...claim me."
You go faster. You pay no real attention to John, you notice some pre-cum leaking from the tip of his cock and almost feel sorry for him for a second. But then you look back down at the girl in front of you, perfect in every aspect, a slut for your cock, and you forget all about it.

After some time, Lydia gets on her knees and quickly pulls off her dress. Shes not really careful, and rips a bit of the fabric. "Oops" she smiles, not really looking sorry.
She positions herself on all fours, facing John, now completely naked.
"I´m sorry I ripped the dress you bought me" she tells John, while you position yourself behind her. "But I´m sure you dont mind, it served its purpose in seducing Ethan to fuck me, and after all, thats all you wanted-aaaah"
She is interupted by you fucking her again.
Your hands placed on her his, holding her naked body tightly, you thrust again and again, taking Lydia from behind while she faces her boyfriend.

"Do you see what he does to me?" she moans, "See how he brings out who I truly am? Nothing but a cock hungry slut, **** to get fucked by a real man with a real dick."
She is interrupted by you going faster, her head bows down as she bites down on the sheets and moans.

You can only imagine what it must look like for John.
You fucking his girlfriend from behind, while you tower behind her, muscles defined, powerful, imposing.
His hand glides to his dick to stroke it, but he has to stop after only a couple of strokes, the situation turns him on to much, and he cant risk to cum.

Meanwhile, you dont plan on stopping anytime soon. It feels almost natural to fuck Lydia. She feels tight, but you take what now belongs to you, she bows her back, stretches her ass towards you, **** for every part of your cock she can have.

After some time, Lydia seems to be close to an orgasm, you feel her body tensen up.
"Oh my god babe", she says, "Hes actually gonna make me cum! I´m gonna cum on his massive dick while hes still so deep inside me!" Then she turns her head to look at you as good as she can.

"Please do it", she begs, "Make this bitch cum! Claim me...I belong to you....just please..make me.."
And with a scream of pleasure and delight she cums. Her legs shake, you feel her tighten up. It takes almost a minute for her orgasm to complete, leaving her shaking and out of breath. You slowly pull out but shes not finished yet.

"I havent got what I deserve yet." she says.