The cases 9 and 19 where a negative experience for the boy and are therefore not included in JUMIMA. They can be read in the article linked below or in the book.
Source: Rind, B. Gay and Bisexual Adolescent Boys' Sexual Experiences With Men: An Empirical Examination of Psychological Correlates in a Nonclinical Sample. Arch Sex Behav 30, 345–368 (2001). https://doi.org/10.1023/A:1010210630788
Note. Quotes for cases 1, 3, 4, 8, 10, 11, 14, 18, 20, and 25 were taken from Savin-Williams’ (Savin-Williams, 1997) book—page numbers are provided. Other quotes and descriptions were obtained directly from Savin-Williams. Ages of subjects and older partners when the sexual relations began are provided after the case numbers. A few subjects had additional sexual contacts with other men (Case 1 at age 14, then 15; Case 4 at age 17; Case 9, three more at age 16; Case 21, two more at age 17). Details were not recorded for these episodes.
Case 10 (boy 15, man 27). “[It was with] the mailman, honest to God! On and off for two years. The first time was when I came to the door to get a special delivery package in my sheer designer underwear, from American Male. I was changing to go back to school. He sprouted a boner, I got hard, he grabbed mine, I grabbed his, and we were off and running. Every day I’d come home for lunch; my mother worked. I had to be quick so he’d not get docked for late deliveries. He had a real thing for redheads like me. He was very forward, connected with me, and told me how hot I was. Talked about our backgrounds. It ended when he suddenly got transferred and contact became difficult. We visited each other and had sex, but it was hard and we agreed mutually because of the distance that it was better that we be friends and not lovers” (p. 172).