what does a tdick like... actually look like? or how they behave post-testoterone and pre-surgery? I haven't really been able to find like anything educational about how they work- what the look like, how they differ from other genitalia during sex and/or arousal, any of that stuff. I'd really appreciate it if you could explain it?
Bottom Growth or T-Dick Info:
For educational purposes only
I will be calling a "T-dick" a "T-phallus" in this answer.
I highly suggest all read through my second source, it is very informative about growth, sensations, and also has some good general knowledge as well.
Clitoral hypertrophy: the clitoris growing in length and width while taking testosterone.
So a t-phallus very much looks like the head of a penis, the shape, the contours, it just doesn't have a hole for urination like a penis or a shaft especially when you are aroused. A t-phallus gets erect when you are aroused just like a penis. It is considered the pleasure organ.
During arousal (turned on), it actually swells up and fills with blood, becoming erect and more stiff (hard)
While your t-phallus gets bigger on testosterone many people describe their changes in their orgasms and pleasurable feeling. For example you may like a different kind of touch now because that feels more pleasurable. "Some people describe feeling a more erection-like sensation when aroused." - source 2
Typical bottom growth on testosterone therapy is typically 1 to 4 cm, sometimes even more, this growth varies. One small study¹ about bottom surgery reported the average length of bottom growth measured from 2.5 cm to 4 cm in the study participants who eventually underwent surgery. Another study² found that at the one year mark, the average growth was 4.6 cm.
During sexual intercourse with someone with female genitalia: will require you to use a dental dam as protection (dental dam information), this is just basically a sheet of latex or another kind of plastic (like male condoms), to prevent direct contact. You don't not just need to use one during oral sex but if you are rubbing your genitals together it may be a good idea. If you are sharing toys make sure to clean them thoroughly between using it on the opposite person. (Making sure sex toys are clean is always a good idea).
If you are having sexual intercourse with cis males/ male genitalia: you should be requiring that person to wear a condom, even if they are trans themselves, any bodily fluid contact can spread a STI. Or you can use female condoms.
Here are some articles on sexual health.
Sexual health article 1
Sexual health article 2
Below are example images of a t-phallus and growth:














