I spent so much time between my brother in laws legs doing this very thing. Anytime his wife would leave, he would call me and tell me to get my sissy ass over here. they lived next door so I was getting a lot of dick.
I just love setting between their legs worshiping their cock like this spending lots of time on their balls and even some time licking their ass to show my submission to them. And I love getting their cum like this on my face and scoop it into my mouth showing them how much I love their cum.