What some Moms are doing between the sheets might shock you.

One wild Mom we know offered up a hot tip: how to have a menage a trois without the mess and fuss of involving another person.

Niteflirt.com invites you to order a pre-recorded phone sex greeting. (The average recording runs five minutes at $1.99 a minute, so there's a lot of bang for the buck--pun intended.) Greetings are available in a wide variety of genres, from fetish to French maid.

Here's how it works: Users pay up, then type in a phone number, and the call goes through right away. When the phone rings, the idea is to hand it to him during the deed. Or if the kids are asleep and out of earshot, there's always speaker.  

So, what's your take: sexy fun or sleazy-no-way?