I personally have really sensitive lips (I bet a lot of people do). When touching another person's lips and tongue can feel very nice. It's like soft, wet, and an erotic feeling. The most enjoyable part can be feeling psychologically connected. It can be very intimate. Also hormones will be released which get the body more interested and ready for sex. I remember feeling very relaxed and felt like a relaxed high. There's a strong desire for sex at that point and it feels very nice to want the other person like that.
Most Helpful Girl
Extremely soft, warm, if you're kissing a good kisser then tongue won't be too overbearing. I think kissing is addictive. I love it. But it can be weird to do if you do it with the wrong person. In my experience, kissing guys I just met is a hit or miss.