I have used bold to highlight the important parts that I think need to be in the female word - so we can see they are describing the same thing.
"Stud" now has many meanings, which makes this harder to answer. I will try to cover them all.
Stud (Urban Dictionary):
This person is really cool. Everyone looks up to them and wants to get with them.
Get with means to kiss or take part in touching, referring to two people who are not dating or have just started dating
This means that they are likely to often not be in a relationship, otherwise they wouldn't be as available as it implies, which suggests someone popular, perhaps has had a large number of transient sexual relationships.
Stud (Google Define):
a young man thought to be very active sexually or regarded as a good sexual partner.
So, as Urban Dictionary said someone promiscuous, popular and likely to be sporty, which leads me onto another (American) word:
...a jock is muscular, but not very smart, and cannot carry a conversation on any topic other than one relating to sports, exercise, or sex.
So again, sex is coming up here.
I am not including the Google Images (NSFW) "definition" here because that is more focused on the "publicly perceived definition" of looks, rather than the real one (promiscuity). The two are (closely) linked but I don't want to complicate the matter further.
This leads me to a few words for females that apply:
Bimbo (Google Define):
An attractive but empty-headed young woman, especially one perceived as a willing sex object.
Funnily enough, this used to be a word for a male, back in the 1920s, when it first appeared in AmE.
This has the lack of intelligence and the sexual promiscuity of "jock" but doesn't really have the popularity of a "stud".
Bombshell (Google Dictionary):
a very attractive [often blonde] woman.
This also lacks the popularity part, something that no word for females seems to include. Both are focusing on the looks of the female, which is something I said I was avoiding earlier in this answer (the perceived definition, or Google Images definition).
However, I think it is implied by the terms above (as well as other words used to describe a promiscuous person), and therefore would suggest you use the word "Bimbo" (with caution, the "willing sex object" part isn't an especially flattering way to describe someone).
Have a look at the Urban Dictionary for Popular Girls, it may shows what I mean.