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The partial text: "魔法少女の魔力"
Can be translated as "magical girl abilities"
Making a guess based on context of what the cut of kanji was, my most likely guess is "源" which means source / origin
So if the text was "魔法少女の魔力の源" that would make it "magical girl abilities origin" or...
Consent is a bit dubious in this because of the reality altering powers
I'm surprised no one has mentioned it but it does have that kind of dark undertone wondering if sue used her ability or they're both dating out of free will
No it doesn't, I've checked dictionaries and it means "plan"
There is no reference to lesbian sex anywhere in dictionaries and online and I even checked with advanced google search operators