Hourglass - minimum 10 inch difference between bust/hips and waist. Her hips look wide enough, but I don't think her bust is. Hourglass figures usually have slightly broader shoulders to give that illusion of a 8 figure. It looks like she has around B cup breasts.
Pear - Wide hips, small waist and upper body. It's possible.
Straight - because of the way she's positioned, she could have a 'straight' body. If there isn't a massive difference between her bust/hip & waist size, she's probably straight/banana shaped. Most women are this shape. She has thin thighs, arms and core. Her butts poking out, so her hips probably aren't as big as they appear.
I reckon she's probably straight/banana shaped. Who cares, really. her body is bangin'.