While Jessica Simpson, who has yet to be pregnant, denies rumors that she’s getting a breast reduction to make herself look skinny, Ashlee Simpson (left side), who’s had one kid, is on vacation in Mexico in a hot little bikini denying rumors that her ass was genetically engineered by horny scientists.

Geez, just look at that. Ashlee may be the talentless one in the family but she more than makes up for it by not being fat. Although her dad is creeping me out by pulling a half-Basic Instinct in that lounge chair.