'Bachelor' Winner VERY Pregnant, VERY Naked

10/18/2011 4:45 AM PDT

'Bachelor' Winner Shayne Lamas -- VERY Pregnant, VERY Naked

"Bachelor" winner Shayne Lamas just treated her unborn fetus to its very first NUDE photo shoot ... and TMZ has the pics.

Lamas is weeks away from giving birth to her first child ... fathered by TheDirty.com honcho Nik Richie ... and before she pops, Shayne made sure to capture the beauty of pregnancy in all its stark naked glory.

As TMZ first reported, the couple hasn't announced the sex of the child -- but they've already picked out the name ... Press.