Started just putting lotion on myself. Then a finger slipped

I've tried pretty hard but I still can't think of anything as

He thinks i'm studying but I'm really showing myself off to BBC

I should be studying for school but id rather play with myself

Studying hard so I can finger myself later

Studying hard so I can finger myself later

Studying hard so I can finger myself later

Studying hard, so I can finger myself later

Studying hard, so I can finger myself later

Studying hard, so I can finger myself later

Touching myself at the thought of getting fucked hard

I’m realizing that I’ve been missing out on great sex limiting