"Yeah," he says. "It's a hickey. You latch your mouth on tight and suck until it bruises. It feels better than it sounds. You can get them almost anywhere. At least..."

He laughs. "Anywhere that isn't... meant to be sucked on?"

He spreads his legs a little, letting her examine more closely.

"Take as close a look as you want, if you're curious," he offers, because it feels rude to order your little sister to keep stripping. He's seen her in her underwear before, even if he never exactly stopped to appreciate the view.

As he does, now, he continues to get harder.