AFAIK she's only done one shoot after giving birth:
http://www.redtube.com/384060
http://www.topfox.tv/pic/allie_sin/270053_allie_sin_scaled.jpg
http://www.topfox.tv/pic/allie_sin/283033_allie_sin_scaled.jpg
http://www.topfox.tv/pic/allie_sin/290469_allie_sin_scaled.jpg
http://www.topfox.tv/pic/allie_sin/305895_allie_sin_scaled.jpg
http://www.topfox.tv/pic/allie_sin/307779_allie_sin_scaled.jpg
By looking closely to her belly and legs You Might see why...
http://www.redtube.com/384060
http://www.topfox.tv/pic/allie_sin/270053_allie_sin_scaled.jpg
http://www.topfox.tv/pic/allie_sin/283033_allie_sin_scaled.jpg
http://www.topfox.tv/pic/allie_sin/290469_allie_sin_scaled.jpg
http://www.topfox.tv/pic/allie_sin/305895_allie_sin_scaled.jpg
http://www.topfox.tv/pic/allie_sin/307779_allie_sin_scaled.jpg
By looking closely to her belly and legs You Might see why...