What is that clip and where can I find it? *Not the photo*

The photo is not of the clip I am looking for. A while ago I saw a vide featuring the following: A brunette (almost latina) mother/stepmother phones her blonde friend/sister who I think may just have gone through a break up or something a like. The blonde comes over and is introduced to the son (I think). The blonde and the son proceed to do their own. Next take the blonde and the brunette are in bed and the son comes in between both and then they proceed to xxx. A phrase in that is the brunette moaning: "Show how you f* mommy". For some reason this one has been on my mind for a while now. Thanks!