It really goes to show that twins do think alike!
This just happened to me last week. Since it was our semestral break, I really had nothing to do at home. I just watched TV and from time to time surfed the net. It was also raining that day and the only ones in the house(Mom had work) were me and my twin, Katrina.
Due to the heavy pouring, it got colder. Feeling horny during cold times was my weakness. I noticed my nipples were getting hard through my shirt and a tingly feeling was starting in my crotch. I needed to be relieved FAST!. I went to my room and laid on my bed. I hurriedly tugged on my jeans to take them off. I could see my panties were getting wet. I then took those off followed by my top and bra. I fantasized about a boy I liked in class, thoughts about him kissing me, feeling me up and stuff. I rubbed my pussy with the left hand while caressing my chest with the other. My body and mind were in pure exstacy and on the verge of cumming.
I was about to achieve orgasm when I heard the doorknob twist, I was in shock to learn I forgot to lock the door. I had no time to hide or dress. After that, in came Katrina. She was shocked to see me naked on the bed and seeing me in sweat. She had the feeling that I was masturbating. Instead of getting mad, she came to my side and told me that it was ok.
'It's ok, it's normal...I do that too.' She said.
'I guess I just got horny because of the weather that's all' , I replied.
'Guess what, me too. I wanted to masturbate in the room too, but it seems you got here first'.
With that in mind I asked her if she too could masturbate with me. She willingly agreed. It was our first time to watch each other masturbate. It was really fun and erotic. I got to touch her privates and she did mine too. We spent about two hours exploring each other that day, sharing sexy secrets and some techniques too.
Even now, we regularly have sessions at home especially during night time, we would masturbate each other to orgasm and sleep in each other's arm, naked and wet.