swimsuit help?

[casted-disaster.livejournal.com]

I'm not sure if this would be an appropriate question for this community, but I'm planning on making a swimsuit. I'm not sure if I should, because I don't want it to fall apart in the pool! I know I have to use spandex/lycra fabric, but what thread should I use? And also, do I need a serger? My sewing machine has elastic overlock and a ton of other types of stitches already. Thanks in advance.

PS: I have a small chest, so I don't have to worry about a lot of support.