Are stretch marks a big deal to men?

I am 19 and I got hideous stretch marks from my waist's sides up to the mid-portions of my ***. I'm a swimming athlete and my team mates + coach saw them already but none of them have made a comment. Recently, my brother and my Mom were petrified when they saw my marks. I always thought these marks are normal especially that as a kid, I gained weight and then as I grew older like now, my body has trimmed significantly in terms of size. I'm really slim now but they're still there. I am worried that they are a big turn off to guys. I do not have children yet. Never conceived. It's all because of weight loss. I'm really conscious now and am willing to do anything to hide them during swimming practises and swimming parties where my friends will be. Of course it's not because I'm being superficial. I know that I have so much more than stretch marks but I want to be non-offensive... I don't like to petrify people. And oh, I am sort of ually active so I want to know if it really does matter to men. At all. Thanks.