Men are evolution adapted, to desire mothers or women with stretch marks, these are PROOF OF FERTILITY.
Very important to genes needing to be passed on to not waste time with potentially barren women.
So I guess your stretch marks make you something of a fertility symbol, and this particular symbol is genetically engrained in men's psyches, and cannot be changed by culture and fashion.
However also men are adapted to seek nubility, that they may monopolise a womans fertile, and most fertile, years of adolescence through young adulthood. This means no stretch marks, skinny waist, big bum, medium firm perky breasts, very smooth skin and less body hair.
These are just two of the genetic strategies programmed into men, strategies for passing on ones genes, each male possesses a set of complementing, competing and even contradictory desires (programming) each with different strengths, and even some that will vary in strength.
The result is an unpredictable mess of sexual desire, with men going after all sorts, after their own sort, wife swapping, gang bangs, and cuckoldry (programming misfire).
Some men will most desire women who have proven fertility, like yourself, others will prefer a woman of unknown fertility but with more available childbearing years (remember at the time we evolved, our lifespans were much shorter).
So um yeah.
Me I'm attracted to nubility, stretch marks are not a turnon but early pregnancy is (my programming thinks that while the woman has proven her fertility by getting preggers, I can just kill the other mans baby and replace), however I would never NOT sleep with a woman because of stretch marks.
However if there were two totally equal women, one with, the other without, I would choose the one without.
Oh and yeah women have their own complete set of sexual desires and strategys, like sleeping with predatory alphas on the side so that her genes will be paired at least once with the genes that make a certain percentage of men be predators who sleep with taken women, and so increases the chances and strategies her children will be able to themselves use in passing on her genes.
Or the fact that because a woman can make so fewer children in her lifetime than a male, that she must be more picky in choosing the gene donors to complement her own genes, and must also be more committed to the care and survival of her children, thereby increasing the survivability of her gene line.