Humouring the OP that he's not at the end of the school holidays.
Proper deepthroat, you can feel the end of your cock slide into their throat - there's a definite sensation that you've gone into their throat. A lot of girls claim to be able to deepthroat, but not many can - generally your cock just hits the back of their mouth and doesn't pass into their throat. I can count on one hand girls that have actually properly deepthroated me properly, including civvies and WGs. Of the WGs that are currently still working locally that I've seen, only Classy Filth and Woofie can do proper deepthroat and of those two only Woofie can do the truly rare skill of taking a throatpie - where you cum down her throat while she's deepthroating you.
If anyone has any recommendations of other girls, let me know. I'd definitely be interested.