Honestly, the only games I came across with dick growth (for the MC) were
Holiday Island (though takes a bit of grinding for the pill and is only for one girl),
Peasant's Quest (which had one scene involving a giantess), and
High Jinx, with a wish growth scene in one path if you don't use any wish and stay at home. Though if you don't mind futa (and femboy)
Champion of Venus has you as a character that can grow a large cock and one of the first opponents you face is a femboy with the power to grow his cock to extreme sizes. The art is pretty minimalistic on that one, fair warning.
As for gifted MC with cock worship, there are a few games I can think of:
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The Visit: Though is pretty much just a visual novel, the MC has a large cock and it is brought up quite a bit, and this is one of the more popular games on here
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Timestamps: Has two parts and a story that centers on time travel, but in between everything is a big dicked lad (with a big dicked friend as well) fucking a bunch of girls who lust so much for him
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Treasure of Nadia: Actually a pretty neat story and a lot of game play, but like above, your character is well-endowed and every character in the game acts like he has the biggest cock in the world
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Solvalley School: Has a lot of content, very quick to sex scenes (since apparently everyone just wants to bone the protagonist despite him being just...just the worst), and everyone loves talking about his cock size. Like one storyline is literally only about him having the perfect cock for a size queen, and that's not counting the storylines that worry he's too big or the lust for him being massive (all of them, everyone mentions it). This game is probably the one with the most cock worship that I have played.
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Bimbo High: It is what it says on the tin, a high school of bimbos that you got transferred to because of your bimbo step-mother. But MC does have a gift himself that gets attention
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A Different Summer: Yeah, just straight up a visual novel with no choices or anything, but 3 girls are attracted to the protagonist and his dick size
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WVM: Yeah, this one is an odd one, since his cock kinda just gets smaller as the game goes on (not an in game mechanic, just the dev made his cock smaller they continued making it). But there is definitely big cock worship at the beginning and a bit as it goes on.
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The Thickening: Again, if you don't mind Futa, this is a game with a well endowed protagonist as well as breast and ass growth for her.
For a text based game like TiTS and CoC, there is
Hard Times In Hornstown, which is more grounded than those other mentioned games, but has customization and the ability to change your cock size (and breast size, and gender, and features) through a clinic.
And might as well mention it,
Retrieving the Past I have heard as the character's penis size as a significant part of the story. I haven't played it myself, so I can't say to what degree, but it is popular enough. Also in the same vein, I have heard great things about
Harem Hotel and the amount of cock worship in it, but again, haven't played it.
