Something similar happened to me, except it was my 10-year-old sister who wrote on me. I had to go around for two days with bright red blisters on my arm spelling out the word "retard".

I really don't understand what people gain by drawing penises everywhere. Honestly, it looks rather stupid to me, but hey- now you get to wear what you love to draw.

*Sarcasm Alert* -- "Very mature."

You deserve it

And now colour in the rest of your arm with the invisible pen.

Why did u draw penises on your own arm? Do they get you excited?

Which is worse, the pain of the allergic reaction, or the embarrassment? If the latter, just scribble in all the negative space, so your whole arm will be one giant reaction, but penis-free!

You should always get allergy tests so you don't and up with extra penes (plural of penis) on your arm. Laying on a table for 15 min as they put randomn stuff on your back.....No scratching!

Looks like you'll be wearing long sleeves for a while. Or you could grow a pair and strut your new tats.

Misinterpreting this would make people think "how did he see an invisible pen"