In this episode, Alvin and Johanna's mutual attraction almost reaches breaking point, once their collaboration in the library begins extending to their groin areas... however, at the last moment Johanna collects herself, leaving Alvin so... blue-balled that he has no choice but to make a desperate proposal to Rachel. Fortunately, she's been so horny for quite a while that Alvin's plea is granted, all the way up to ploughing his ex-lover's previously untapped asshole. The weirdest event of the day is yet to come, though, when, driven by jealousy, Alvin pursues Tamara to the nightclub where she was supposed to have a date with Dennis. Finally unleashing his rage on the obnoxious little nerd, Alvin drives him away - and is rewarded by nothing less than a public handjob by his very own elder sister... because, as far as Tamara is concerned, everything that is planned for little sister must pass through big sister's seal of approval first!