The (no longer) elusive Pokemon doujin by Mizone featuring Braixen http://www.pixiv.net/member_illust.php?mode=medium&illust_id=48158094 http://www.doujinshi.org/book/774203/
I promised myself to upload this one for a long time but didn't get around to it until now. I had trouble with scanning paperbacks and several files have corrupted in the process, so apologies for the uneven quality of the scans.
@jcdentonxs She's 'loosening up', because she isn't flexible enough (near the beginning, doing exercises typical of ballet students); after doing a search, she found a site that says stimulating her vagina will make her lower body loosen up (thus the vibrating egg scene). Dude looks at the site and (claims?) that it says that sex works twice as well. Sexy times. Virgin turns into sex lover. The end.