As the title says, Im looking for a nice thong, which is made out of lycra and can easily fit a hard cock, so I can stroke in it without problems, like a second skin!
Has someone a good suggestion where I can get a good one, (link would be nice)
I would recommend Gregg Homme. They have many thongs that fit like second skin (e.g. Boy Toy, Voyeur are especially good).
http://gregghomme.com/
I have a blue Gregg Homme Boy Toy thong in my profile that would provide an idea what they are like.