She takes a good inspection of his junk, hopefully not waking him

She peeped right into his crotch. She thought it would be funny to say "why do you have a boner bro!" but.. he didn't. yet.

"Well," she reasoned to herself "when he saw me masturbating he saw it all, and I was more ****. But when he finally admitted my pussy looked good, it was a relief and a confidence boost. So, it is my duty to inspect his cock and balls, and I'll compliment them later."

She first traced the highest bump in his shorts with her finger. She was surprised by a semi hard dick, and felt it warmth as she found its very tip, and felt a slight wet spot. "That makes two of us" she though, a bit wet herself. "Okay, so it's working, it seems a good size and is still growing, now for science, i must check the balls. But it seems rude to wake it and then leave it alone. So, one hand holding the dick through his shorts, she took the other one to feel his balls. Remarkably, his didnt wake as first she squeezed on, then the other. Gently probing, she moved them lightly around to get a good feel of the size and heft of them.

Jack started to stir. She jumped off him in time, and he woke up and looked around. He noticed he was and said "hey, close your eyes I gotta issue" he said, but she replied "why? ohh... ohh..." she said pointing at the tent in his shorts like she just discovered it. he started to turn red and stood up, but it just made it more obvious. She shifted gears "Wow! hey thats great bro. you should be proud of it." he started to lower the hands covering his erect cock. What!? is my sister complimenting my dick"

"Yeah, she said. it's naturally when you sleep, it's just says you are healthy and proud be proud of it! wave it proudly!" She may have overdone it, but she did want to watch it bob. "It's not like it didn't know you had a penis. Just let it hang. Doesn't that feel nice?" He let his dick tent out while he was standing. "Yeah, you're right, he said, "If you don't mind it does feel like a good stretch." he twisted around, adding to the swaying and pointing at her his dick was doing.

After a little more casual hanging, he left still hard, and she watched him go, wishing she had done and seen more