Hi again, Introvers. Apps for casual meetings with women could include Tinder, AdultFriendFinder, Bumble. There are probably others. I've never used an app to try to meet women, I should be clear - I'm not speaking from experience. What I can say from experience - I have a lot of experience with women, as lovers, friends and family - is that there would be only a small minority of them looking for casual sex on apps. Meeting a stranger for sex has an element of risk, for any of us. We men generally have the confidence to go through with it and see what happens. We never know, knocking on the door, if we're about to meet a psychopathic killer, but we generally back ourselves to be able to handle the situation. Women (with a few exceptions) are not as physically strong as men and are at risk of having things done to them that they haven't consented to. Or worse, killed.
No doubt there are exceptions, but I'm just telling you this so you know that you're probably on a hiding to nothing, trying to meet women in apps for casual sex. I see you're from Chile - do you know the British/Australian English expression "on a hiding to nothing"? It means you're almost certainly likely to fail, no matter what you do. Any app with straight people will have a huge majority of guys, looking for what you're looking for. I also suspect that many of the "women" on apps are bots pretending to be women, to make men feel like they have a chance and to encourage them to keep spending their money on membership. Do you have anything to offer that's so much better than all the other guys? You don't need to tell us, just ask yourself.
Tips on profiles - having used gay apps, my first tip would be to be honest. Say you're looking for casual sex, have decent photos of yourself (face not showing for public display), and be prepared for a long wait. At the very least you should be clear about your willingness to use condoms, because most women aren't looking for STIs as part of the random fucking experience. Not saying you have one, but she doesn't know that.
If you want to experiment with sex with women, try meeting and dating a woman - yes, I know it's the long game, but it's really the best option. Or try swingers' clubs, but you might also find as a guy without a partner, you're either excluded or up against stiff (pun intended) competition. This might be your best option to meet couples into bisexual sex.
What women like sex? Generally (and probably with a few exceptions) women want emotional connection, feeling safe, feeling desired, and feeling like their sexual needs and desires are important and will be taken care of. Many women feel frustrated, disillusioned or even angry that the focus of sex for many men is penetration and male orgasm. If a man feels that sex is only about shoving his dick in, moving it about until he has an orgasm, and then it's all over, she's probably not going to enjoy it. If you want a woman to enjoy sex (and it's important if you want her to come back for more, casual or not), she needs a lot of foreplay which includes whole-of-body stimulation (massage, kisses of the erogenous regions of her body such as neck, ears, breasts and inner thighs) as well as clitoral stimulation. It's important for her physical and psychological preparation to receive the dick. If she's fully aroused and ready, sex will feel better for her and she's more likely to want it again next time you want it. Google "vaginal tenting".
If she has an orgasm, you've done a great thing together. Many women probably hope for it but feel disillusioned about sex from past experiences, and expect with a new guy she's not going to get one. I know you said in your introductory post that you're not comfortable with eating pussy, so use your fingers and lots of lubrication (either her juices, your saliva, or a lube). Don't try to erase her clitoris. Be gentle with it. Gently brush and tease. Try using your tongue around her pussy and try to get used to it, try to enjoy - if you can enjoy eating pussy, she's going to enjoy you more. It's important to remember that most women don't orgasm from penile penetratoin, so you need to work on her clitoris. Ask her how it feels. She most likely won't want to be very direct and explicit with giving directions, so you need to communicate with her. Take your time, and don't feel pressured to get it done, or she'll sense your urgency and she'll feel like it's a high pressure performance review instead of pleasure giving. Sometimes, she won't achieve an orgasm and that's okay, there's no need to feel like you've failed.
Women start their sexual lives, mostly, with a not very enjoyable first experience. They're shy, nervous or scared, and it can hurt them. From there, it might get better depending on the guy, or it might continue to be all about them being a hole for a guy to get off in. Some eventually get to enjoy it. Most would have sex to cement a relationship, not purely for physical enjoyment.
You might start to understand from all of this, that most women are not looking for casual encounters and hoping or expecting that some random guy is going to take his time and give her an orgasm before fucking her. This is why I've said what I've said about hookup apps.
Women are complicated. Men are straightforward, we just need to penetrate or be penetrated. Women take time to please, and they're very rewarding when you get it right.
