I love the 'puckered' or 'ruched' butt bikini bottoms, so transforming my own bikini was perfect! You can do this with bottoms that fit, it will just make them a little cheekier. (haha)
-bikini and thread-
Chose a thread colour that matches the bikini well! You don't want a strange coloured line down the back of your bottoms. Strong thread, or elastic thread works best.
-line to follow-
Turn the bottoms inside out and draw a dashed line down the centre with a pencil. (Rulers help!)
-follow the line-
Continue stitching as far down as you want the pucker. This part takes a bit of trial and error.
Pull the thread before tying off to get the 'scrunched' effect. Again the tighter you pull it, the more 'scrunched' it will be.
-thread is less visible when they are on-
Try them on and see how you like them! The stitch can easily be taken out, and if you make a mistake you can try again. Even a non-sewer can do this!
This little trick will give you a butt lift without having to do 1000 squats.