Jennie sucks Jack

You turn to Jennie and say to her "I wish you'd suck Jack's cock"

"Sounds good to me" Jennie says with her usual cheerfulness

She wanders over to Jack and kneels down in front of him. She undoes his belt and slowly pulls down his jeans. You can already see a bulge in Jack's boxers and can't wait to see how big he is. Jennie then proceeds to pull down his boxers and reveals his 10 inch cock... still flaccid.

"Shit... if this is flaccid, how big does it get?!" exclaims Jennie

"Make it hard and find out" Jack says while winking at her. You see him mouth to you that it's 15 inches when hard.

Jennie then carries on by first placing the head of Jack's huge cock in her mouth and sucking on it gently. At the same time she cradles his balls and slowly strokes his length. You see him starting to get harder just from this. Jennie starts taking more of his cock in her mouth, 3 inches to begin with and you see Jack sigh with content

"Damn, you're good at this" Jack moans with content

Do they carry on just the two of them or do you help with the blowjob?