How we cite our quotes: (Chapter.Paragraph)
Quote #1
Speaking of savages, Bruce Cowell and his pack of jock-wannabes, who'd been kicked off every school team because of attitude problems and/or the use of illegal substances, were right on schedule for their weekly feats of dumbassery. (1.8)
When Deanna says "the use of illegal substances," she could be talking about pot, but in the context of athletics she probably means performance-enhancing drugs like steroids.
Quote #2
One of the things Darren and me have in common is that we both let Mom and Dad down. Him because of having a kid so young, not to mention getting busted for pot when he was sixteen and having to go through this whole court thing. (2.205)
Deanna doesn't mention Darren's arrest again, but since Tommy was his best friend, he definitely had access to pot. It's possible that Darren could even have sold pot to Tommy.
Quote #3
"Hang out after closing," he said, confident, like I wouldn't say no. "I've got some burnables." (4.2)
On the other hand, Tommy could have sold to Darren. If he did, he could have been indirectly responsible for keeping Darren trapped in Pacifica/his parents' house (even though, of course, Darren made his own choices).
Quote #4
It wasn't fair, Lee getting to think about losing her virginity with a nice guy like Jason, someone who spent his last two bucks on her favorite cookie, someone who didn't get her stoned so he could feel her up […]. (5.100)
Deanna blames pot for her giving in to Tommy, but he also told her she was beautiful and different from other girls. The pot might simply have made it easier to do what she thought she had to do to keep him.
Quote #5
We drove down the coast that night and parked in the lot at Montara Beach, where Tommy lit a joint. "You don't want any of this," he'd said. "You're too young and sweet." (6.99)
This isn't a statement, it's a dare—and it works. Chances are Tommy's tried this one before. He's an older teenage boy, and he knows the tricks for getting girls to fool around with him.
Quote #6
"You have no idea what goes on in junior high, do you," I said, taking the joint from him. Still playing the game. (6.100)
Deanna thinks it's a game, but she doesn't realize she's the one being tricked. Tommy's getting her stoned so he can get her naked; he doesn't care if she looks mature or cool or not.
Quote #7
"It's been a while." He watched me take a hit. My friend at the time, Melony Fletcher, was sort of a pot head and I'd smoked a little with her. (6.101)
Do you see this as Deanna using the everyone-else-is-doing-it excuse to justify her decision? That kind of justification may make it easier for her to do what she has to do to get the attention she craves.
Quote #8
It was like I was watching myself slide over toward him, watching myself let him pull me onto his lap while I laughed and laughed, goofy from the pot. It didn't seem so bad. (6.105)
Note the number of justifications Deanna throws in while telling the story of her sexual experiences with Tommy. It doesn't make her responsible for being treated badly, but it shows she knew at the time that what she was doing was a bad idea.
Quote #9
"You want to fire one up?" Tommy asked, digging in his pocket for a joint. (8.31)
Tommy might as well just ask her if she still wants to be his booty call—it would be more honest. But as it is, he knows he has to use drugs as a tool to get Deanna to do what he wants sexually. He knows that getting high loosens inhibitions.
Quote #10
I remember that first time I didn't want to do it, really […] But I was stoned and it seemed like a reasonable alternative to going all the way and I didn't want him to get mad at me. (8.39)
When Deanna says "but I was stoned," she could either be justifying again or saying that being stoned made it not so bad to give Tommy oral sex.