When we're in a relationship, we can sense when our guy is horny and needs to cum. He comes, he kisses warmly, he rubs himself, his dick gets hard. As a good bf, the urge to worship is natural. These two guys are always ready to cum together, and that's what makes them such a successful couple. A few hot kisses are all it takes to give them a hard-on and they suck each other off. Then the top gets in his man's ass, which is perfectly opened from servicing his dick all the time. A good moment of pleasure between sensuality and firmness.
