Jen Selter

Jen Selter -- fitness model turned ass Internet sensation -- tells TMZ Sports ... she LOVES when famous athletes and celebs reach out to her about her butt 'cause "it makes me feel special in a way." Selter and her bulbous derriere were hittin' the streets of NYC when we talked about how her 'donk…

TWO MILLION butt aficionados can't be wrong ... which is why fitness model person Jen Selter has become the Internet's reigning QUEEN OF ASS! And she'll have no trouble holding the title -- if she avoids dairy and spicy foods.