On a 7-9, she'll do it if you turn her on.

Jessie moans, crawling up beside you, "Oh, I will baby. I want to share your big thick load of hot, delicious cum with my big sister. But first, I want you to lick me like you licked her."

Jessie straddles your face, her smooth, clean teenage pussy slit right over your mouth. You eagerly lap at Jenna's little sister's tight teen cunt. She tastes hot and sweet, opening wetly for your tongue. Jessie writhes and squirms, riding your face, her little clit swelling as she juices into your mouth.

You can't see Jenna, but you feel her move down, sitting right over your swelling cock. Your girlfriend rests her hands on your thighs and you hear the two sisters kissing, sharing your cum.

"Mm," Jessie sighs, "I love sharing his sweet cum with you."

(Mark +1 xp when Jessie swallows your cum!)