Family fun

Jack bucked and groaned as he felt Nia's pussy grip and swallow his new cock. He was amazed that she could fit him all inside. Seems what his parents said we're right.

"Oh god yes! Nia your body feels so good!" Panting between thrusts, Jack shivered in excitement. He groped his sister's large tits with wild abandon. Also not forgetting to suckle on her nipples to sip on her milk.

"Mmmm. Little brother, keep sucking on them please..." Lovingly caressing his head through his hair, Nia stared starry-eyed up at her brother.

"Look at you two go." In came his father's mirthful voice. He was puffing on a cigarette next to his mother, naked.

"Oh stop it you.. Don't you remember us when we were their age. This is good they can be like this." Playfully punching her husband, she took a puff of his cigarette before watching Jack and Nia.

Knowing his parents were watching him fuck his sister on the bed made jack stop mid-thrust. This left him balls deep with the sight of his bare ass showing.

"Hey! Why'd you stop?" Clutching his torso, Nia didn't seem to clue on their parents were spectating.

Looking helplessly at his sister and then his parents, he shook his head before resuming his actions. This brought a smile from Nia who was under him.

Jack knew from their angle that his parents could see everything. But they didn't seem to mind. And going by their smiles, they even looked to be supporting it. It truly was hard to get used to.

Throwing everything to the back of his mind, Jack let instincts takeover. Like a rutting animal, he pounded and fondled his sister to no end. Before long, in a particularly intense moment, he felt the stirrings of an orgasm.

"Nia I'm cumming!!!" Warning her, Jack tensed up as he felt his seed leave him. This is when Nia felt a warm current gush into her cervix. This triggered her own orgasm in turn.

After riding through the after-glow of sex, the two of them gently untangled. Cock slipping free, a trickle of cum left Nia's pussy to trail her legs.

*Clap clap clap*

"Wow you two! I'm so proud of you!" Cheerfully looking on, Jack's mother Jess couldn't contain her happiness. She clasped her husband's hand before walking before Jack and Nia.