Honesty is always the best policy!!! Ask your brother to please sit down with you in private, so you two can have a long talk uninterrupted by distractions. Put both of your cellphones in another room before sitting down to talk.
Tell your brother that you really miss spending time with him, and that you miss talking with him. Explain to him exactly what happened. Look into his eyes. Make doe eyes at him.
Here are a few suggestions about how to handle the situation with your brother:
- Ask him to please spend time with you again, and to talk with you.
- Tell him that he's always been a great brother, and that you're sorry for accidentally wrecking things.
- Ask him to hug you.
- Tell him that you love him, and that you'll always love him.
- Tell him how much you've enjoyed spending time with him.
- Tell him that having a super great brother who pays attention helps to keep you out of trouble, because you're not lonely and yearning for male attention.
- Tell him that he's modeling the type of guy you'll want to date.
- Tell him how much he's helped you to be able to quickly spot liars, jerks, creeps, and players... because he's NOT one of those.
- Tell him that having a neat brother has kept you from falling for the lies of players (if that's true).
- Thank your brother for loving you and for all of the wonderful times you've shared together.
- Thank your brother for covering his eyes, and for acting like a polite gentleman.
- Reach out and give your brother a long hug. Whisper "I love you... please don't pull away from me, and please don't ignore me!!!" into his ear.
BTW... it's actually possible that your brother was turned on by what he saw, and he might be thinking that you're trying to seduce him (it happens - take a look at this Yahoo! Answers question - https://answersrip.com/question/index?qid=20140205201438AAuXISL ).
If your brother got turned on by accidentally seeing you undressed... that doesn't mean he's a pervert, demented, or evil. It just means that he's completely normal. It would also be normal for him to think about you now while masturbating... but you don't need to say anything about that.
Finally... go ahead and tell your brother that if he happened to get turned on by seeing you naked, it's perfectly normal. It's OK, and he doesn't need to feel embarrassed.
Good luck!!! I hope that you have a talk with your brother, and that things go back to normal again.