"I can't let myself hurt them."
That's what Bruce Jenner tells Diane Sawyer in a new promo for his upcoming two-hour 20/20 special.
The reality star, and father of ten -- six biological and four step -- says his family members "are the only ones [he's] concerned with."
Audiences have learned very little about the exact subject of Jenner and Sawyer 's interview -- possibly on purpose.
Rumors have been swirling for the past year that Jenner's changing appearance, including long hair and a shaved Adam's apple, means he is transitioning to a woman.
But daughter Kendall Jenner said the tabloid rumors were all "bulls**t."
Bruce Jenner has made no official statement regarding his gender or any planned transition. His mother told the Associated Press that he sat her down for a long talk and that what he told her was "a shock," but she was proud of him and would always love him.
In the new 30-second promo, a voiceover booms, "Bruce Jenner, on family" followed by Jenner saying, "Those are the only ones I'm concerned with. I can't let myself hurt them."
The voiceover says the interview will cover "the future, the decisions, the journey," but does not elaborate on what any of those entail.
A quote used in a previous promo is also repeated in this one: Bruce Jenner saying, "My whole life has been getting me ready for this."
The special will air Friday, April 24 at 9 p.m. ET on ABC.
Watch the first promo for the 20/20 interview:
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