You feel up their boobs

Well, what guy could complain about feeling two girls' boobs, but it was kind of weird that one was my sister. Although with the sex games Ash and I had already been playing, I didn't feel any urge to stop. I reached over and put my hand around one of Ash's tits, probing and squeezing it, feeling its heft. I caressed it and pinched her nipple, then I gave the same attention to her other boob. Then I turned toward my sister. "This is just a little weird, sis," I looked at her. "You sure you're ok with this?"

"Just feel up my boobs, damn it, James. What are you, some kind of an idiot?"

My cock had stayed hard all this time and it felt like it was getting even harder knowing I was feeling up my big sister. I grabbed both of her boobs at once, they were indeed bigger and squishier than Ash's tits. I gave them several good squeezes, then toyed with her hard nipples pinching and squeezing them too. I had known she had pretty big tits but I had never actually seen them or touched them. My hard cock was telling me I liked it.

"Well?" Lizz looked at me.

"Um, no hard feelings, Ash, but I really think I like Lizz's boobs better."

Lizz smiled at me. "That's a good boy, James. Now why don't you suck them?" She pushed my head forward planting my mouth firmly on one of her tits. I didn't resist but starting licking and sucking her fleshy orb while my hand instinctively went to her other tit and started playing with it. After a couple minutes I switched boobs and continued licking and sucking and squeezing. Her nipples were really swollen and hard and I especially enjoyed pinching and sucking and biting them.

Lizz pulled my head back and smiled at me. "That was nice, you're pretty good. But you better give Ash's boobs some attention now, we don't want her getting jealous."

"Sorry, Ash," I said as I turned to her, noticing she was actually playing with her own boobs.

"That's ok, that was totally hot," she smiled. Her tits might not have been as big as Lizz's but her nipples were popped way out and hard as little rocks. I twirled and pinched and squeezed them with both hands before planting my mouth on one and licking and sucking it all into my mouth. Her tits may not have been as big and squishy as Lizz's but they were just as fun to play with. Ash started moaning softly as I gave her boobs the full treatment.

Lizz moved over beside Ashley. "Ok, I think that's enough. Do you want to continue this evaluation?"