Oshawott uses Attract on Emolga...it's not very effective...
Did this a long time ago on the Japan airing of Pokemon Best Wishes (or Black and White in US).
It was funny that Ash's Oshawott was crushing on Iris' Emolga (despite the disadvantages) so Snivy helps out by teaching him attract (explaining her appearance).
I like the rivalry between her and Emolga also.
Oshawott, Emolga, Snivy (c) Pokemon company, Nintendo