Love Hina & Shattered Angel

In a Love Hina OVA revolving around Motoko, Naru get's possessed by a demonic sword. During this Motoko's older sister tries to stop her, but gets kissed by Naru, the kiss drains her of her power.

In Shattered Angel(kyoshiro to towa no sora), the angel's require kisses to power them up for combat, and these kisses usually drain the other party somewhat, there is even a cat girl who goes around draining many random victims in such a way.

I really do enjoy the material this site provides and I hope these help. I'll try to think if I've seen any others as well.

can you specify which episode???

Epsidoe 25 of the anime for Love Hina

As for Shattered Angel, this kissing is episodic, though a good one of the cat girl would be the first episode.

I need to know where else she kissed (the cat girl) XD

I can't really remember, I do however remember at some point it comes back to her and a pool of unconscious school girls, not sure if it shows one of them being kissed, but yeah...