There have been a lot of super sexy Instagram pictures from our most skintasticcelebrities lately, so we decided to put our favorites together in one sexy post. When celebritiestake off their clothes on social media, we're here to tell you all about it.

Nadine Velazquez celebrated her 40th birthday by wearing her birthday suit! That's the absolute best outfit a woman can wear. It's the birthday gift that keeps on giving.

Lena Dunham is never afraid to show off her whole body, so this picture of her in lingerie feels like a bit of a tease...until you realize how see-through it is. We see London, we see France, we see Lena's nips and a clit slit.

Sarah Michelle Gellarmade a controversial Thanksgiving-related post when she posted pictures of her in sexy lingerie to remind herself not to overeat for the holidays. Commenters jumped down her throat for fat shaming, but we appreciate her method ofskinspiration.