If a girl that you know since not so long, who text you everyday and suddenly, one nigt tells you that she is in a loving and huggy mood, so she is going to touch herself and then sleep...
is she interested in my' she doesn't seems like an outgoing person to do that to everyone
OP, let me tell you
In your circumstance, best way to proceed is to tell her to write more of the same. "Tell me what you're imagining doing when you got you fingers softly covering your wet and warm petals."
Her answer will give you an obvious idea of what's going on. You don't need our help.
If positive answer, give her more reasons to fantasising about you. In text form. Girls get aroused by ideas, guys get aroused by visuals. No need for dick pic, just write her fantasies.
Protip: use sensual imagery. Warm, tight, pulsating, throbbing, hard, long, wet, sweaty, softly, slippery, forceful, fast, firm, loud, etc.
It. Will. Drive. Her. Wild. And. Ready.
It's actually not about her intentions, it's more about how you can influence her thoughts.
I assume you're into this girl. Too often do I see guys on this board thinking that women's reasons and desires are something static and unchangeable. Thing is, if you're into a girl, you have the ability to make her attracted to you, even if she hasn't felt anything herself yet. A girl texted you and told you she's going to touch herself. Unless she sees you as her gay friend, it's already obvious she wants you to see her as a sexual being. Unless you respond to her in a way that builds attraction between you, she's going to have more reasons to think that you won't be doing anything and she'll soon lose interest, because there will be guys out there who will take advantage.
You find it intimating to write her sexually, and even suggestive, because it sits outside of your comfort zone. Well guess what, in order to become a man in your prime you need to go outside of your zone, be courageous enough to be taking risks with women. You'll be rejected plenty of times, for sure, but you'll gain a lot of experience along the way, getting more and more comfortable and confident the older you get.
Take a risk and write the girl something that shows her you're not afraid to take the lead and be more of a man than what she's used to of her other beta orbiters. As far as I can tell she's giving you permission to test her limits. Writing "wish I could give you a hand ;)" you won't risk much, since a potentially bad reaction on her part easily can be fixed by you stating that you were only joking. The potentially good reaction means you'll soon be witnessing a girl naked.