I have to admit, I rather liked Koisuru Boukun. For once, we have some boys love that is actually fairly realistic!
The plot: Morinaga simultaneously came out and delcared his love for his sempa, Tatsumi, a massive homophobe (read: closet gay). Tatsumi spends the majority of the first episode being pissed off, yelling at Morinaga because his little brother left for America with his lover, who happens to be a man. At some point, Morinaga aquires a bottle of strong aphrodisiac, a liquid that appears to contain mostly extra strength viagra. He invites Tatsumi over for some comfort drinking. Tatsumi drinks pretty much all the beer, and sends Morinaga out for more. While he's gone, Tatsumi digs through all of Morinaga's drawers and eventually finds the viagra juice, which he immediately completely consumes. Morinaga returns to find Tatsumi with the empty bottle, and freaks out slightly, but there doesn't seem to be any effect. That night, Tatsumi wakes up with a raging hard-on...And you know what comes next. The morning after, they wake up and Tatsumi yells at Morinaga, and says he doesn't want to see his face. Morinaga, who is still in love with Tatsumi, complies and disappears. After about a week of self-pity, Tatsumi gets worried. He finds out that Morinaga filed to quit the school, and spends a lot of time outside his apartment looking sad. After two weeks, he finds Morinaga's front door unlocked and storms in, Morinaga is confused, but things sweeten up a little when he realises that Tatsumi was extremely worried about him the entire time...And you know what happens next.
The reason I liked this BL was because it was more than just a random rape then declaration of love, it was a borderline-rape, a declaratin of hatred, then a realisation of love. The first sex scene happened in a pretty realistic way; a drunken hook-up, and was followed by a pretty reasonable shouting match. The subsequent disappearance and worrying was also pretty realistic - if a fellow student and friend disappeared, you'd be worried about them no matter what.