Is it legal for a 14 year old , to have sex with a 15 year old guy?

I'm not judging but yes, it is illegal. Think very hard before doing anything. How does the relationship change? Well, that depends really. If you truly love each other (i personally think you should wait a few more years) then it can bring you closer together. On the other hand, it can change the relationship for the worse, it just depends on the couple i suppose.