In the weeks after the party, Jack spent a lot more time at Cleo and Ella's house. Cleo liked him staying the night, though they had yet to have sex, and Ella enjoyed when he would sneak out of Cleo's bed to fuck her senseless in the middle of the night without Cleo ever suspecting.
About 2 weeks after the house party, Cleo, Ella and Jack were hanging out in the girls' living room. They had a few bottles of wine between them and everyone was smiling and laughing. Cleo, a renowned lightweight, was tipsy enough to be completely oblivious to the heated and suggestive glances her boyfriend and best friend were shooting at each other.
"Ooh I have a fun idea!!" Said Cleo suddenly, pouring herself another glass of wine. "Why don't we get the VR headset out and play some games?"
"Great idea babes!" Ella replied genuinely, biting her lip. If she could get Cleo engrossed in the game, she could have a quickie with Jack on the sofa while she played...
Jack set up the console and headset while Cleo dragged in a dining chair to set in front of the TV. Ella bent over at the waist to check the game shelf for an appropriate game to keep Cleo occupied, subtly wiggling her arse in a way that was making it very hard for Jack not to grab her and fuck her right there, Cleo be damned. Eventually she found one that she knew Cleo was easily addicted to and she inserted it into the console.
Ella took the first turn, deliberately doing badly and pretending to pout over how bad she was at the game. Jack had the second go, doing better than Ella and giving Cleo a challenge to beat. When it was finally Cleo's turn, she slipped the headset on confidently and said "Let me show you amateurs how it's done!"
With zero hesitation, Ella climbed over Jack and straddled him, leaning down to whisper in his ear sexily.
"Fuck me, Jack. Fuck me right here, behind your girlfriend's back." She ground her pussy down against the large, hard bulge in the front of his trousers and bit her lip when he thrust his hips up to meet hers.
"What if we get caught?" He whispered back urgently, slipping his hand underneath her short, pleated skirt to stroke up and down her soaked knickers.
"We won't, trust me. Cleo is so good at this game that she stays on for ages. Plenty of time for me to ride that big dick of yours." She reached down and unbuttoned his jeans, tugging his erection free of the denim and his boxers.
Jack tugged down her vest top and bra until her tits popped out and he began taking her nipples into his mouth and sucking on them as she stroked his cock.
"I love this game!" Cleo said suddenly, unaware that her boyfriend and bestie were seconds away from fucking each other.
"You're awesome at it babes, it's so fun watching you!" Ella replied, staring down at Jack, who released her nipple from his mouth to respond in agreement and encourage Cleo to carry on.
Ella bit her lip naughtily as she guided his cock to her entrance and tugged her lace knickers to the side to grant him free access. With a sigh of relief, she sank down on his cock, feeling the sweet ache of her cunt stretching around his hard member. Jack grabbed her hips, forcing her down onto him until he was buried as deeply as he could be inside her pussy. Without another word, he reached up and covered Ella's mouth with one of his big hands as she lifted off him and sank back down, rolling her hips. She let out a muffled moan into his hand as she repeated the motion.
"Are you sure you two aren't bored?" Cleo's voice interjected again as Jack fucked his hips up into Ella, feeling the wetness from her pussy dripping down his balls.
