@nprofile1q... She looks fatter because she's sitting. Lisa is really pretty chunky, even in the show. Drawing her right has been an ongoing challenge.
The first two hurdles have been overcome. One, parents are safely asleep and didn't catch Bart sneaking through the hall to Lisa's room with a boner. Two, Bart saw his chubby sister sitting naked on the bed and didn't run. Now Lisa just needs to get him out of his pajamas and into her bed.
Between the letter and the blowjobs, Bart is convinced. I had intended to do a lot more with this page. I was going to have Bart with an angel and devil on his shoulders trying to convince him of the right path. Except I was going to reverse it. Angel Bart would be in favor of him making love to his sister as act of giving and bonding. Devil Bart would be against it, saying he should uphold his reputation and not be a sister-fucking hick.
@nprofile1q... Okay, I gotta say something about this pic. I remember this episode, where Lisa successfully convinced two college girls that she was also a college student. This wasn't something that us Lisa pervs came up with, she was written this way! So that makes this scenario not only hot, but completely believable!