Before the series finale of “How I Met Your Mother” (HIMYM) airs on CBS, do yourself a favor and take a look at these 12 sexy pictures of Alyson Hannigan. We have loved Alyson Hannigan since her days back on Buffy and American Pie – (“last year…at band camp”). These 12 pictures will remind you of just how captivating and sexy she has always been — especially after she got married and start having babies. Beautiful body! See for yourself below.