This was a while ago now but its one of the sexiest things my wife has done and one of the hottest things i’ve been privileged enough to watch
We had met this older black guy online and he’d come over to play a few times, i think he was mid 40s and pretty average looking but had a massive BBC, wife would get down on her knees and lick his dick and balls, and then suck him to completion. I was allowed to watch her do it. The first time she started blowing him his eyes lit up and he looked at me and said ‘damn, her mouth is better than pussy!’ and I guess he really meant it, as it never took too long for him to cum when she was blowing him.