Sister thinks im weird

So the other day my sister (24yo) and i(20yo) were talkin and (shes gettin married next month) was talkin bout the possibility of bein pregnant , she has a 1 year old with another guy. well it came up her talkin bout all her sexual partners . (I have a 2 year old and i got married october of 16 and ive been with my husband for 4 years now) she dont believe that ive only been with my husband and same for him . she thinks its weird . Wve come from 2 very different sides (different dads) and i understand that . she was more into that stuff at a young age than i was . I mean i wasnt savin it for marriage or anythang . though were really close we have very different types , i like southern men ya know hunters and gun oriented gentalmen like. she likes more bad boys and trys to "fix them" . and its really got me thinkin is it weird that i married the only man ive ever been with ? i mean id never sleep with anybody else while married. but is it weird ?