Bikini pattern. If you want to add a different colour like I did in the one photo; simply on the side which you started the pattern to make sure it's even, put your hook in the next single crochet like you would normally but instead of grabbing your working colour. Grab the colour you wish to add yarn over pull through one and yarn over again and pull through last loop .
For sizing of cup measure your chain to fit the bottom of breast to top of nipple and work from there this pattern can be made friendly to everyone.
You will need to know your basic chain, sc,sc increase and slip stitch