First of all obtaining links for adult sites is not easy. There are so many porn sites out there, but only a small percent of them are sites that you should get backlinks from.

Unless your site is big like PornHub, no one is going to link to your site for free. It is a sad truth, but it is the way it is.

You may try to exchange links but only with relevant sites from your niche. It is a free method, but you should only get a link from relatively quality sites, not from spammy websites that link to hundreds of different sites everywhere.

You can always email webmasters and ask them if they would be interested in link trading with your sites. If your site is new and it does not get much traffic, then you will get many rejections unless you pay them.

I suggest you to google sites in your niche and check out their domain authority using the free tools like Majestic, et cetera. The higher DA, the better.

You may use some forums, but honestly, there are only a few adult forums which are worth bothering and I doubt any of them are in your niche.

Back in the day, I used the free sites such as the BlogSpot and Tumblr to build free blogs and then add do follow links from them.

On the other hand, if you have some budget, you may try to get some backlinks on quality adult sites. I would suggest you to buy a sponsored post from them and they charge around $50 at least per post.

Also remember to make sure to diversify your link profile so basically get links from different kinds of sites, so forums, blogs, tube sites, et cetera.

That is it, I think.

You should avoid obtaining any links from dubious forum users from GFY. If you want to buy any products or services, first make a research about the user if he is not a spammer, scammer, what not.

I have been buying links from different sources and I can say that 90% of the link sellers on forums like GFY are either scammers or they want to sell you backlinks on low quality adult sites which will do more harm than good.

There are still some trustworthy guys, but always make a research first and I think it is better to just find related sites on the Google and contact them if they want to sell a link.

I suggest to avoid spammy backlinks as hell. It is better to have a one good backlink from a quality site than to have 100 backlinks from spammy sites but that is my opinion.

If you just bought a backlink, you will need to wait a bit before you see any changes in your sites’ rankings.