Erin still wondered about Shannon, but she and Robin seemed to have something going on. According to Shannon it wasn't a serious relationship - neither of them wanted to do that this early in the semester, but they were enjoying each other's company. Erin found that she was getting increasingly jealous of Robin who was over quite often and took Shannon's attention away. There were still times when Erin was also disturbingly turned on by the idea of doing... things... with Shannon, and she still had erotic dreams. None quite so explicit as the first night, everything was kind of hazy, but she knew what was going on in them.
About a month into the semester Shannon and Robin stopped dating, but then Shannon came home drunk one night with another girl. Erin didn't know the new girl's name, they weren't introduced, because she was pretending to be asleep in her bed when the two stumbled in. With Robin, Shannon had always been very respectful, she'd never gotten drunk and done anything that would ever make Erin uncomfortable...
Now that she was completely smashed, she and the other girl were kissing passionately and practically ripping the clothes off of each other's bodies. Erin felt very wrong watching them, but at the same time she couldn't really stop herself... it was just so hot to see them going at it, even though she felt both envious and jealous. Shannon moaned as the other girl sucked on her nipples, her own hands running over the girl's backside.
Slowly they moved back towards the bed, falling onto it and going under the covers. Erin was both relieved and disappointed... her own pussy was wet and her eyes were burning with the image of Shannon's passion-inflamed face and the way the other girl had been sucking on her nipples... but she had also been uncomfortable watching.
Now she had just her imagination as muffled moans and slurps came from the other bed. Thinking about Shannon's naked body and the two girls touching each other, just a few feet away... wriggling a little under her own sheets, she tried to stay quite but she could help sliding her fingers down to her heated pussy and stroking the folds. It wasn't as if they would notice, the smell of aroused pussy was already in the air, and her own was burning desperately with need.