The lips of Rarity moved themselves down in a gentle manner and as the lips of the mares finally met one another, it was Rarity who broke out in a kiss filled with lust. Bon Bon returned it but with a pure love for her mistress. She was still under her command and could have only done her mistress' bidding. The forelegs of the unicorn managed to wrap themselves around the head of the earth pony in order to hold the kiss just so deep. Whereas the hindlegs of the mare below her wrapped themselves around the creature above. Just to  tuck her down against her warm body.