Is it normal to want to eiffel tower your friend's mom?

So here's the thing....Every time we party at our friend's house, his mom'll drop by for a bit. Everything's fine until people start to get a little tipsy. When people start going to bed I get urges to "eiffel tower" my friend's mom with one of my other friends...(for those of you who don't know what this is, it's when you and a friend have a threesome with a girl. One of you goes from behind, and the other receives oral all the while locking hands above your heads to where the profile looks like the, you guessed it, eiffel tower...) One time I even had to be taken out of her room by friend when she woke him up to remove me. Is this normal? If so, what should I do?