You're welcome, Manu!

One other suggestion to lead her in the right direction is to use her hair on her, like the ends of a brush, to tease her nipples.

Failing that, can't you just walk up behind her naked when she's sitting in a chair and start rubbing her shoulders or something? If your dick should happen to accidentally get buried in her hair, what's the harm?

Best of luck to you, brother! I know you will get there eventually.