Linkbuilding for german/english projects, adult and non-adult

Hello! Searching for some affordable, experienced backlink-builders. Links have to be from quality sites and permanent of course. I usually internal SEO my sites myself, so I need the backlinks for better SERP-positioning. But I am open to your SEO-suggestions too. I have several projects, so please check if you can provide good backlinks for any or all of these types: - german sites - english sites - german adult sites (porn!) - english adult sites (porn!) Consulting in choosing the relevant keywords would be an additonal plus Looking forward to hear from you with some detailed informations such as concepts, prices, maybe portfolio etc. Thanks descent