Jenny and Ashley Go for a Run - sketches and PSD (Patreon)

I was well into sketching another idea when this one popped into my head whole cloth.  My only explanation is since the weather is still pretty dreary here, the only place I see attractive women is at the gym. And there are A LOT of attractive women there. In skin-tight clothes. And almost all of them are focused on butt exercises.

So what I'm saying is, if you're looking for motivation to join a gym, most of them are filled with fit women clenching their butts in painted-on workout clothes!