Is it normal that after my first orgasm, i can't stop humping things?

PLEASE TAKE THIS SERIOUSLY PEOPLE, because I am currently in a period of sexual development. I'm not a horny troll trying to turn you all on, I've just discovered the overwhelming joy of humping and I need advice on what to do. Thank you.

OK, so last week I had my first non-dry orgasm ever, and it was INCREDIBLE. I got the orgasm by humping a fluffy toy rabbit from the closet. I was so glad to have finally done this, I feel like I have taken a step forward in life. I actually had such a powerful orgasm that I actually ejaculated, and it's scary, almost.

By the way, I'm male, age 18, for what it's worth.

The reason why I did this, I'm not sure about. It was just a random morning last week where I felt like I needed to hump something. So I found the fluffy rabbit toy, stripped naked, jumped into bed and just humped it, faster and faster. I couldn't control the powerful pleasure that came over me. I couldn't.

Now, I just can't stop humping comfortable things. I don't do it in public but when alone I rush upstairs with a cushion or a stuffed animal, jump into my bed and hump for my life, either on top of the object or below it (I don't mind) just to have that same orgasm and ejaculate.

I'm so sorry, but it just feels so, so good. I can't help myself knowing that I can do it without any problems. This is all so sudden! Also, I'm scared to tell Mum and Dad. What will they think of this? D=

is it normal anybody? I need advice, please don't be mean to me.