Has the current US Government not taught you anything?
1) Reflect the blame - it was your brother or sister using your device
1 - a) If it has a password claim they hacked it or found it it out via spying. More drama the better.
1 - b) Claim the school did not give you sufficient training or eduation using the device so that it was hacked or used by a 3rd party
2) Trump is blameless in all things
3) It it was your fault you didnt do it on purpose and are therefore innocent.
4) Trump is blameless in all things
5) Even if it was your fault you didnt do it on purpose and are therefore blameless
6) Trump is blameless in all things
7) Even it was your fauly who the fuck cares?
8) Trump is blameless in all things.
8 step guide to avoiding the rather pathetic issue of looking at porn.
At the end of the day a bunch of 40+ year old christians are going to be judging you. Chances are even if you looked at some REALLY niche stuff one of the guts on the school council is going to be eying you the wrong way...