Sara Jean Underwood Panties Flash, Blake Lively Bikini Hotness, and Bar Refaeli Working Out Highlight the Sextastic Twitpic Roundup

Wow, what a week for the sextastic celebrities bringing the heat of the camera lens upon themselves. Maybe it's because Spring has sprung, or maybe it's just because egos only grow with sunlight, but some of our very favorite hotties took some amazing photos of their own hot selves this past week and just had to share them with their adoring fans. Whoever tried to raise a generation of girls not needing public affirmation of your looks, to be honest, you have failed. Thankfully.

This week's Sextastic Twitpic Roundup includes Christina Milian bikini body madness, Kendall Jenner leggy teen hotness, Blake Lively bikini sextastic, Sara Jean Underwood tight little dress upskirt, Bar Refaelisweating for her body, Rosa Acosta looking curvy as ever, Hayden Panettiere looking minxy as ever, and a ton more. You owe it to the tree gods of the Vernal Equinox to gaze upon each and every one of these springing forth self-publish pictures. Enjoy.