Petite gyals-->> & WEIGHT GAIN

I understand the frustration of being so petite. I wear sizes from 2-6. It all depends on the brand or where it comes from but I weigh a solid 125. I'm trying to gain at least 5 more pounds but my goal weight is 135. I'm eating 2,400 calories a day and drinking protein shakes. I do two 30 minute exercises but it's mainly to help tone my body. Regardless I do squats but I'm on the 30 squats challenge. Lunges,hip bridges etc.... Nothing wrong with tryna be sexy for the summer. I would love to eat ideas on gaining weight along with foods... SHARE YOUR STORY