It's Sophia sleeping on the couch

As you quietly walk towards the sleeping figure you realize it's Sophia. There's no sign of Susan - she must have gone home.

Sophia is laying naked with just a small blanket covering half her body. Of course your promptly slide this blanket off of her.

You look down at your girlfriend's best friend and stare at her bare breasts for the first time in your life. Unlike Isabella, Sophia's never been much of a slut, at least not in public. She doesn't show off her tits - she doesn't even wear a bikini. Being able to check her out so carefully is quite a present. It makes having a cheating whore of a girlfriend worth it.

You think about your girlfriend in bed with her ex right now, and you remember watching Sophia fuck him too. They are all a bunch of cheating whores. You wonder how much Sophia thought of her boyfriend Zach when James was fucking her.

You realize that your cock is already half hard.

You reach down and take one of Sophia's tits into your hand and squeeze it very gently. Her nipple hardens in your hand and she lets out a soft murmur. you're more than half-hard now.

As you continue to gently massage Sophia's perky tit, Isabella walks in wearing nothing but a towel.

"John! What are you doing?" Isabella asks.