My good friend Glassfish has a series of pics she's doing featuring a busty mother helping her young son get into shape, by any means necessary. If that doesn't explain the premise of these images for you, then perhaps the alternative title of "Sexercise" will. Either way, these are the colors I've done for the series so far, with more on the way as I complete them.
If you like Glassfish's style (and really, how can you not), please check out her own sexy blog, The Glassfish Bowl. Cheers.