How do I get ready to wear a bikini?

Im classified as skinny by my peers but I don't have a great stomach... I don't think I'll feel comfortable in a bikini until I have something similar to those of a model but not without puking purposly! Abs would do great as well but I try and try but I can't make my stomach look nice at all... I need really big help! Please help me guy and girls! I want to look nice for summer and my boyfriend... to impress him.
How do I get ready to wear a bikini?
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