DIY boudoir shoot?

Emily

Have no clue what to get the bf for Valentine's day (I'm broke), but I was thinking maybe some boudoir photos would be nice. only thing is I'd have to shoot it myself and figure out poses that don't make me look terrible. I have some curves and when I tried to take a sexy photo once before, the pose I tried made my belly hang all gross. any tips? also, if you know where to buy some affordable lingerie let me know!