Bel nodded. "I more meant if we decided we're friends, and I find you at all attractive, that might be all it takes to be willing to bed you," he said. "I know other people are more restrained than that."

And, yes, Bel also knows that an emotional connection is not required for him if it's just a simple 'let's both just get each other off' sort of night -- he can accept Barcus is not that sort of person, and that Barcus accepts that Bel can be that sort of person. Bel is just starting to realize that he's more inclined to be adventurous with a friend than a stranger, and that the emotional connection does, in fact, make a difference to him as well.

"But, right. Kissing." He does hesitate a bit to consider his approach, but leans in and kisses Barcus on the lips. He is trying to restrain himself -- the drink might be making him more conscious of his own teeth, but it's not the cause of wanting to throw himself at Barcus -- so he just parts his own lips, letting Barcus be the one to decide how deep a kiss this will be.